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ADHD a result of delayed brain development

Scientists in the United States have discovered that youngsters with attention deficit hyperactivity disorder (ADHD) have a delay in the development of some parts of their brains.

13 Nov 2007

The key to unlocking the secret of highly specific DNAzyme catalysis

Using an extremely sensitive measurement technique, researchers at the University of Illinois have found clear evidence that a lead-specific DNAzyme uses the "lock and key" reaction mechanism.

13 Nov 2007

Researchers image a biomarker of neurogenesis

Mirjana Maletic-Savatic, M.D., Ph.D, and co-investigators from Stony Brook University Medical Center, Brookhaven National Laboratory and Cold Spring Harbor Laboratory have discovered a way to image a biomarker of neural stem and progenitor cells (NPCs) in the living human brain.

13 Nov 2007

Telemedicine may play in the diagnosis of eye diseases

Two studies being presented at the American Academy of Ophthalmology's 2007 Annual Meeting suggest that telemedicine may have a significant role to play in the diagnosis of eye diseases, increased patient compliance and patient access to quality care.

13 Nov 2007

Life-threatening gene defect related to thoracic aortic disease discovered

A research team led by scientists at The University of Texas Medical School at Houston has identified a defective gene that affects vascular smooth-muscle cells in people who suffer from hereditary thoracic aortic disease, which can kill victims with little warning in the prime of their lives.

13 Nov 2007

Trial looks at ability of insulin to limit heart-tissue damage during a heart attack

The ability of insulin to limit heart-tissue damage during a heart attack will be tested in a landmark clinical trial led by Paresh Dandona, M.D., Ph.D., University at Buffalo Distinguished Professor in the departments of Medicine and Pharmacology and Toxicology in the UB School of Medicine and Biomedical Sciences.

13 Nov 2007

Cortex maturation in attention deficit hyperactivity disorder

In youth with attention deficit hyperactivity disorder (ADHD), the brain matures in a normal pattern but is delayed three years in some regions, on average, compared to youth without the disorder, an imaging study by researchers at the National Institutes of Health's (NIH) National Institute of Mental Health (NIMH) has revealed.

13 Nov 2007

False memory syndrome

Duke University Medical Center neuroscientists say the places a memory is processed in the brain may determine how someone can be absolutely certain of a past event that never occurred.

6 Nov 2007

Early diagnosis of prostate cancer

Treating prostate cancer is a race against time. By the time the patient can feel the first symptoms, the disease has usually spread too far.

6 Nov 2007

Antibiotic that appears to control phobias may also be useful in treating addiction

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory provide further evidence that a drug known as D-cycloserine could play a role in helping to extinguish the craving behaviors associated with drug addiction.

6 Nov 2007

64-slice CT scans a good test for clogged arteries

A study by an international team of cardiac imaging specialists, led by researchers at Johns Hopkins, concludes that sophisticated computed tomography (CT) scans of the heart and its surrounding arteries are almost as reliable and accurate as more invasive procedures to check for blockages.

6 Nov 2007

Medical causes of iatrogenic renal disorders

Nephrologists and other health care providers need to be aware of certain medications and diagnostic test preparations that, in some patients, can cause damage to the kidneys, according to a special clinical update being presented at the American Society of Nephrology's 40th Annual Meeting and Scientific Exposition in San Francisco.

5 Nov 2007

Heart plays a losing game of catch-up as people age

Researchers at Johns Hopkins have evidence to explain why the supposedly natural act of aging is by itself a very potent risk factor for life-threatening heart failure.

5 Nov 2007

MRIs reveal 13% of healthy adults have a brain abnormality

A Dutch study has revealed that as many as 13% of healthy adults may have some type of undiagnosed abnormality in the brain.

4 Nov 2007

PET scan distinguishes Alzheimer's from other dementia

A PET scan (positron emission tomography) that measures uptake of sugar in the brain significantly improves the accuracy of diagnosing a type of dementia often mistaken for Alzheimer's disease, a study led by a University of Utah dementia expert has found.

2 Nov 2007

Harvard 'Brainbow' helps chart neural circuits

By activating multiple fluorescent proteins in neurons, neuroscientists at Harvard University are imaging the brain and nervous system as never before, rendering their cells in a riotous spray of colors dubbed a "Brainbow."

1 Nov 2007

Consultation on the protection of patients and volunteers undergoing MRI examinations

The Health Protection Agency has published a consultation document on its website about the protection of patients and volunteers undergoing magnetic resonance imaging (MRI) examinations.

1 Nov 2007

Sound training rewires dyslexic children's brains for reading

Some children with dyslexia struggle to read because their brains aren't properly wired to process fast-changing sounds, according to a brain-imaging study published this month in the journal Restorative Neurology and Neuroscience (online October 16).

31 Oct 2007

Step toward mapping the human decision-making process

The brain, the human supercomputer, might work more like an assembly line when recognizing objects, with a hierarchy of brain regions separately absorbing and processing information before a person realizes what they are seeing, according to new research conducted at the University of Pittsburgh and published in the Oct. 31 edition of the Journal of Neuroscience.

31 Oct 2007

New brain marker predicts cognitive decline and the development of Alzheimer's disease

Duke University Medical Center researchers have used imaging technology to identify a new marker that may help identify those at greatest risk for cognitive decline and the development of Alzheimer's disease.

31 Oct 2007